fullerene

noun

An allotrope of carbon composed of any of various cagelike molecules that consist only of an even number of carbon atoms, are often spherical in shape, and are composed of hexagonal and pentagonal groups of atoms.

Origin of fullerene

AfterRichard Buckminster Fuller ( from the resemblance of their configurations to his geodesic domes ) -ene

Any of various carbon molecules that are nearly spherical in shape, are composed of hexagonal, pentagonal, or heptagonal groups of atoms, and constitute the third form of pure carbon after diamond and graphite.